Submitted to: Entomological Society of America Annual Meeting
Publication Type: Abstract Only
Publication Acceptance Date: July 8, 2002
Publication Date: November 1, 2002
Citation: BECKLER, A.A., FRENCH, B.W., CHANDLER, L.D., BECK, D.A. SHIFTS IN LANDSCAPE ATTRIBUTES AND INTERACTIONS WITH ADULT WESTERN CORN ROOTWORMS IN THE SOUTH DAKOTA AREAWIDE MANAGEMENT SITE FROM 1997-2001. ENTOMOLOGICAL SOCIETY OF AMERICA ANNUAL MEETING. 2002. Technical Abstract: Western corn rootworms (CRW) create economic and environmental concerns in the Corn Belt region of the United States. In order to supplement the population control tactics of the areawide program in Brookings, South Dakota, we used GIS to examine the spatial relationships over a five-year period (1997-2001) between population densities, habitat structure, topography, and soil type. We are using this information to find patterns in the landscape that promote high population density patches. Using the inverse distance weighted interpolation technique, we created surface maps to estimate areas of CRW populations that were collected from emergence cages and Pherocon AM yellow sticky traps. For each year, we used these maps to overlay with vegetation, topography, and soil maps to search for any quantitative relationships. We report on these relationships with respect to landscape metrics such as the temporal shifts in size, shape, and arrangement of patches.